Anti-Leakage Electronic Cigarette

ABSTRACT

An anti-leakage electronic cigarette, including an atomizer and a power unit; the atomizer includes a cup body, a smoke tube having two ends in connection with upper and lower ends of the cup body, a sealing element arranged between an outer side of the smoke tube and an inner sidewall of the cup body, and a microporous ceramic heating core arranged inside the smoke tube; the cup body defines on a top thereof an inhalation hole in communication with the smoke tube; the microporous ceramic heating core has two ends in sealed connection with the smoke tube; a gap is defined between the middle part of the microporous ceramic heating core and the smoke tube; a position on the smoke tube corresponding to the microporous ceramic heating core defines a liquid hole; the cup body defines thereon an air passage which connects the outside of the cup body.

CROSS REFERENCE TO RELATED APPLICATION

This application claims the benefit of Chinese Patent Application SerialNo. 201921042131.0 filed on Jul. 4, 2019, the contents of which areherein incorporated by reference.

BACKGROUND OF THE INVENTION Field of the Invention

The disclosure relates to the field of electronic technologies, and inparticular to an anti-leakage electronic cigarette.

Description of the Related Art

Electronic cigarette, as an electronic product simulating traditionalcigarette, has the same appearance, smoke, flavor and feeling as thetraditional cigarette. The electronic cigarette is to make, throughatomization and other means, nicotine and the like turned into a vaporfor a user to inhale. Generally, an electronic cigarette mainly includesa smoke tube used for accommodating a nicotine solution, a vaporizingdevice and a battery. An atomizer, powered by the battery, is able toturn the nicotine liquid inside a cartridge into a vapor, so that a userwill have a feeling similar to smoking when inhaling the vapor. Forexisting electronic cigarettes, a heating core is arranged inside thevaporing device, so as to vaporize the tobacco liquid into an aerosolfor a user to inhale. For the part of heating core of existingelectronic cigarettes, a heating wire is wrapped with a cotton cloth,the heating wire is soaked in the tobacco liquid, and the heating wireis heated to vaporize the tobacco liquid into a vapor. However, thetobacco liquid long-time permeating the cotton cloth would lead totobacco liquid leakage, thus inconvenience is brought to users.

How to solve the problem in existing electronic cigarettes that tobaccoliquid leakage is caused due to long time use becomes an urgenttechnical problem for the skilled in the art.

SUMMARY OF THE INVENTION

The purpose of the disclosure is to provide an anti-leakage electroniccigarette, so as to solve the problem in existing technologies thattobacco liquid leakage is caused due to the tobacco liquid long-timepermeating a cotton cloth arranged on an outer layer of a heating coreof the electronic cigarette.

A lot of technical effects that can be generated by the preferredtechnical schemes among a lot of technical schemes provided by thedisclosure are illustrated below in detail.

In order to achieve the above purpose, the disclosure provides thefollowing technical schemes.

The disclosure provides an anti-leakage electronic cigarette, includingan atomizer and a power unit configured for supplying power to theatomizer, the atomizer being in detachable connection with the powerunit, wherein:

the atomizer includes a cup body, a smoke tube, a sealing element and amicroporous ceramic heating core; the cup body defines an inhalationhole on a top thereof; the smoke tube has one end in connection with thetop of the cup body and in communication with the inhalation hole, andhas the other end in connection with a bottom of the cup body; thesealing element is arranged between an outer sidewall of the smoke tubeand an inner sidewall of the cup body and is positioned at a bottom ofthe smoke tube; an upper end face of the sealing element, the outersidewall of the smoke tube and the inner sidewall of the cup bodyenclose a sealed liquid cup configured for storing a tobacco liquid; themicroporous ceramic heating core is arranged inside the smoke tube andis positioned above the sealing element; the microporous ceramic heatingcore has outer sides of two ends in sealed connection with an innersidewall of the smoke tube, and a gap is defined between the middle partof the microporous ceramic heating core and the smoke tube; a positionon the smoke tube where the microporous ceramic heating core is arrangeddefines a liquid hole which allows the tobacco liquid to enter the smoketube; and the cup body of the atomizer further defines thereon an airpassage which connects the outside of the cup body of the atomizer withthe inside of the smoke tube.

Preferably, a position on the cup body corresponding to the liquid cupfurther defines a window which is configured for observing a liquidlevel inside the liquid cup.

Preferably, the cup body includes an upper cup body and a lower cupbody, the inhalation hole is defined on a top end of the upper cup body,the upper cup body has an open bottom end and the bottom end is providedwith a supporting base, the smoke tube has a bottom end in detachableconnection with the supporting base, the lower cup body has an open topend, and the lower cup body is detachably sleeved outside the bottom ofthe upper cup body.

Preferably, the sealing element defines thereon a liquid refill channelwhich connects the outside of the sealing element with the inside of thecup body, the upper cup body has a sidewall defining a liquid refillhole which is in communication with the liquid refill channel, theliquid refill hole is defined where the upper cup body is in connectionwith the lower cup body, and a plug, which is configured for sealing theliquid refill channel, is arranged at the liquid refill hole.

Preferably, the air passage includes an air inlet defined on a sidewallof the lower cup body, a first air passage defined between the upper cupbody and the lower cup body and configured for connecting the air inletwith a bottom of the supporting base, and a second air passage definedon the supporting base and configured for connecting the bottom of thesupporting base with the inside of the smoke tube.

Preferably, the microporous ceramic heating core includes a microporousceramic support and a heating wire arranged inside the microporousceramic support, the microporous ceramic support has an outer side inconnection with the smoke tube, the microporous ceramic support has ahollow interior, the heating wire is arranged wound on the interior ofthe microporous ceramic support, and the heating wire has two ends inelectrical connection with the power unit.

Preferably, a liquid sorbent cotton is arranged above the microporousceramic heating core inside the smoke tube.

Preferably, the supporting base is provided with two first electrodes,the heating wire has two ends in connection with the two firstelectrodes respectively, and the first electrode is in electricalconnection with the power unit.

Preferably, the power unit includes a housing and a battery arrangedinside the housing, the housing has a top end provided with two secondelectrodes, the two second electrodes are in electrical connection withtwo electrodes of the battery respectively, and, when the atomizer is inconnection with the power unit, the second electrode passes through thecup body to contact the first electrode.

Preferably, a pair of magnetic components is arranged on the bottom ofthe cup body and the top of the housing.

The disclosure provides an anti-leakage electronic cigarette, which hasthe following benefits.

The disclosure provides an anti-leakage electronic cigarette, includingan atomizer and a power unit configured for supplying power to theatomizer, the atomizer being in detachable connection with the powerunit; the atomizer includes a housing body, and a smoke tube and asealing element and a microporous ceramic heating core which arearranged inside the housing body; the housing body defines an inhalationhole on a top thereof; the smoke tube has one end in connection with thetop of the housing body and the smoke tube is in communication with theinhalation hole, and the smoke tube has the other end in connection witha bottom end of the housing body; the sealing element is arrangedbetween an outer sidewall of the smoke tube and an inner sidewall of thehousing body, and the sealing element is in sealed contact with an outersidewall of the smoke tube and an inner sidewall of the cup bodyrespectively; with such arrangement, the top surface of the sealingelement, the outer sidewall of the smoke tube and the inner sidewall ofthe cup body form a sealed cavity, and the cavity is the liquid cupconfigured for storing the tobacco liquid; the above microporous ceramicheating core is arranged inside the smoke tube and the microporousceramic heating core is positioned above the upper end face of thesealing element; the microporous ceramic heating core has outer walls oftwo ends in sealed connection with an inner sidewall of the smoke tube;a gap is defined between the outer sidewall of the middle part of themicroporous ceramic heating core and the inner sidewall of the smoketube; a position on the smoke tube corresponding to the middle part ofthe microporous ceramic heating core defines a liquid hole which allowsthe tobacco liquid to enter the above gap; the tobacco liquid inside theliquid cup enters the above gap via the liquid hole to contact themicroporous ceramic heating core, the microporous ceramic heating coreemploys a microporous ceramic, the microporous ceramic refers to aceramic body which has lots of open or closed tiny pores inside or on asurface thereof, the aperture generally is micron-sized orsubmicron-sized, the tiny pores inside the microporous ceramic heatingcore have adsorbability, which can well lock up the tobacco liquid,preventing the tobacco liquid entering the inside of the smoke tubethrough the microporous ceramic heating core; the tobacco liquid isvaporized into an aerosol after contacting the heated microporousceramic heating core, and the aerosol may enter the inside of the smoketube via the tiny pores; the housing body further defines thereon an airpassage which communicates the outside of the housing body with theinside of the smoke tube; when a user inhales through the inhalationhole, the aerosol vaporized to the inside of the smoke tube is expelledfrom the inhalation hole under the drive of airflow, for the user toinhale. The heating core in the anti-leakage electronic cigaretteprovided by the disclosure employs the microporous ceramic heating core,which changes the previous structure that the heating core is wrappedwith a cotton cloth; the microporous ceramic heating core is in sealedconnection with the smoke tube, and liquid leakage will not occur afterlong time use. The disclosure solves the problem that tobacco liquidleakage is caused due to the tobacco liquid long-time permeating acotton cloth, in existing electronic cigarettes of which the heatingcore of the heating wire structure is wrapped with the cotton cloth.

It is understandable that the above general description and thefollowing detailed description are only exemplary and illustrative andcannot limit the disclosure.

BRIEF DESCRIPTION OF THE DRAWINGS

For a better understanding of the embodiments of the disclosure or thetechnical scheme in the prior art, accompanying drawings needed in thedescription of the embodiments or the prior art are simply illustratedbelow. Obviously, the accompanying drawings described below are someembodiments of the disclosure. For the ordinary skill in the field,other accompanying drawings may be obtained according to the structureshown in these accompanying drawings without creative work.

FIG. 1 is an external structure diagram of an electronic cigaretteaccording to an embodiment of the disclosure.

FIG. 2 is a sectional view of an electronic cigarette according to anembodiment of the disclosure.

FIG. 3 is a sectional view of an atomizer according to an embodiment ofthe disclosure.

FIG. 4 is a sectional view of a second sealing element according to anembodiment of the disclosure.

FIG. 5 is a sectional view of a supporting base according to anembodiment of the disclosure.

FIG. 6 is a structure diagram of a supporting base according to anembodiment of the disclosure.

FIG. 7 is a structure diagram of a smoke tube according to an embodimentof the disclosure.

FIG. 8 is a sectional view of a smoke tube according to an embodiment ofthe disclosure.

FIG. 9 is a three-dimensional diagram of a microporous ceramic heatingcore according to an embodiment of the disclosure.

FIG. 10 is a structure diagram of an upper cup body according to anembodiment of the disclosure.

In the figures, 1 represents a cup body, 101 represents an upper cupbody, 102 represents a lower cup body, 2 represents a smoke tube, 3represents a sealing element, 4 represents a microporous ceramic heatingcore, 401 represents a microporous ceramic support, 402 represents aheating wire, 5 represents an inhalation hole, 6 represents a liquidcup, 7 represents a liquid hole, 9 represents a window, 10 represents asupporting base, 11 represents a liquid refill channel, 12 represents aliquid refill hole, 13 represents a plug, 14 represents an air inlet, 15represents a first air passage, 16 represents a second air passage, 17represents a first electrode, 18 represents a housing, 19 represents abattery, 20 represents a second electrode, and 21 represents a liquidsorbent cotton.

DETAILED DESCRIPTION OF THE SEVERAL EMBODIMENTS

For a better understanding of the purposes, the technical schemes andthe advantages of the disclosure, the technical schemes in thedisclosure are described below in detail. Obviously, the embodimentsdescribed hereinafter are simply part embodiments of the disclosure, butall the embodiments. All other embodiments obtained by those skilled inthe art based on the embodiments in the disclosure without creative workare intended to be included in the scope of protection of thedisclosure.

Embodiments are described below with reference to the accompanyingdrawings. Further, the embodiments illustrated below have no limit tothe contents specified in the claims. In addition, all contents for thecomponents illustrated in the following embodiments are not limited towhat is necessary for the solution of the disclosure as specified in theclaims.

Referring to FIG. 1 to FIG. 10, the disclosure provides an anti-leakageelectronic cigarette, including an atomizer and a power unit configuredfor supplying power to the atomizer, the atomizer being in detachableconnection with the power unit; the atomizer includes a cup body 1, asmoke tube 2 and a sealing element 3 which are arranged inside the cupbody 1, and a microporous ceramic heating core 4 arranged inside thesmoke tube 2; the cup body 1 defines an inhalation hole 5 on a topthereof; the smoke tube 2 has a top end in connection with the top ofthe cup body 1 and in communication with the inhalation hole 5, and thesmoke tube 2 has a bottom end in connection with a bottom of the cupbody 1; the sealing element 3 may be of a hollow annular structure, thesealing element 3 is sleeved between an outer sidewall of the smoke tube2 and an inner sidewall of the cup body 1, the sealing element 3 has aninner sidewall in sealed contact with an outer sidewall of the smoketube 2, and the sealing element 3 has an outer sidewall in sealedcontact with an inner sidewall of the cup body 1; with such arrangement,an upper end face of the sealing element 3, the outer sidewall of thesmoke tube 2 and the inner sidewall of the cup body 1 enclose a sealedliquid cup 6 configured for storing a tobacco liquid; the microporousceramic heating core 4 is arranged inside the smoke tube 2 and themicroporous ceramic heating core 4 is positioned above the upper endface of the sealing element 3; the microporous ceramic heating core 4has outer sides of two ends in sealed connection with an inner side ofthe smoke tube 2; a sealing ring may be arranged where the microporousceramic heating core 4 contacts the smoke tube 2 to achieve a sealedconnection, and a gap is defined between the outer side of the middlepart of the microporous ceramic heating core 4 and the outer side of thesmoke tube 2; by reducing the diameter of the middle part of themicroporous ceramic heating core 4, or by increasing the diameter at theposition on the smoke tube 2 corresponding to the middle part of theheating core 4, multiple liquid holes 7 may be defined evenly along acircumference direction of the smoke tube 2 at the position on the smoketube 2 corresponding to the middle part of the microporous ceramicheating core 4; the tobacco liquid in the liquid cup 6 may enter the gapbetween the microporous ceramic heating core 4 and the smoke tube 2 viathe liquid holes 7, the microporous ceramic heating core 4 employs amicroporous ceramic, the microporous ceramic refers to a ceramic bodywhich has lots of open or closed tiny pores inside or on a surfacethereof, the aperture generally is micron-sized or submicron-sized, andthe microporous ceramic is a kind of functional structure ceramic, withadsorbability and permeability; the adsorbability can well lock up thetobacco liquid, preventing the tobacco liquid entering the inside of thesmoke tube via the tiny pores; the tobacco liquid, after entering thegap, contacts the microporous ceramic heating core 4 to be vaporizedinto an aerosol; the permeability may allow the generated aerosol toenter the inside of the smoke tube 2 via the inside tiny pores; the cupbody 1 further defines thereon an air passage which communicates theoutside of the cup body 1 with the inside of the smoke tube 2; when auser inhales through the inhalation hole 5, air enters the smoke tube 2through the air passage, and the aerosol inside the smoke tube 2 issucked out from the inhalation hole 5 under the drive of airflow. Theheating core used in the disclosure is the microporous ceramic heatingcore 4; the microporous ceramic heating core 4 and the smoke tube 2 havea sealed connection therebetween, which prevents the leakage of tobaccoliquid. In addition, with the microporous ceramic heating core 4, thetobacco liquid cannot enter the inside of smoke tube 2 through themicroporous ceramic heating core 4 to cause leakage. The disclosurechanges the structure in existing technologies that the heating core iswrapped with a cotton cloth and avoids the occurrence of liquid leakagedue to long time use.

In a preferred embodiment, since existing electronic cigarettesgenerally employ plastic housings or hardware housings 18, the liquidcup 6 is hidden inside the housing and cannot be seen, and a user cannotclearly know the usage of tobacco liquid inside the liquid cup 6;therefore, the disclosure defines a window 9 at a position on the cupbody 1 corresponding to the liquid cup 6, which is configured forobserving a liquid level inside the liquid cup 6; the window 9 may be ofa strip shape, extending from the top end of the liquid cup 6 to thebottom end of the liquid cup 6; a transparent material is arranged atthe position of the window 9, for example, transparent plastic or glass,etc., as long as the material is transparent and can be used forobserving the amount of liquid inside the liquid cup; and the cup body 1may also be of a fully transparent structure.

Optional, the above cup body 1 may include two parts, namely an uppercup body 101 and a lower cup body 102 respectively; the inhalation hole5 is defined on a top end of the upper cup body 101; the upper cup body101 has an open bottom; a supporting base 10 may be arranged at theposition of the opening of the upper cup body 101; the supporting base10 may be in detachable connection with the inside bottom of the uppercup body 101; the above smoke tube 2 has a top end in connection withthe top end of the upper cup body 101 and has a bottom end in detachableconnection with the supporting base 10; the lower cup body 102 has anopen top; the lower cup body 102 is sleeved outside the bottom of theupper cup body 101; the upper cup body 101 and the lower cup body 102has a detachable connection structure therebetween, for example, asnap-fit connection structure, and such arrangement is convenient tomount and demount the smoke tube 2, the sealing element 3 and themicroporous ceramic heating core 4 which are located inside the cup body1.

Preferably, to achieve the cyclic utilization of the atomizer, thesealing element 3 may define thereon a liquid refill channel 11 whichconnects the outside of the outer sidewall of the sealing element 3 withthe inside of the cup body 6; the upper cup body 101 has a sidewalldefining a liquid refill hole 12 which is in communication with theliquid refill channel 11; the liquid refill hole 12 is defined where theupper cup body 101 is in connection with the lower cup body 102; a plug13 which is configured for sealing the liquid refill channel 11 isarranged at the liquid refill hole 12; the liquid refill channel 11 mayinclude a first liquid refill channel 11 defined radially along thesealing element 3 and a second liquid refill channel 11 which isconfigured for communicating the liquid refill channel 11 with theinside of the liquid cup 6, and the liquid refill channel 11 is incommunication with the liquid refill hole 12. When the tobacco liquidinside the liquid cup 6 is used up, a user may separate the upper cupbody 101 from the lower cup bod 102 to expose the liquid refill hole 12,and the unplug the plug 13 to refill the tobacco liquid through theliquid refill channel 11.

Further, the above air passage may include an air inlet 14, a first airpassage 15 and a second air passage 16; the air inlet 14 may be definedon an outer sidewall of the lower cup body 102 and may be symmetricallydefined on both left and right sides of the lower cup body 102; the airinlet 14 may be defined on the top of the lower cup body 102; theposition on the lower cup body 102 where the air inlet 14 is defineddefines downwards a V shaped groove or a semicircular groove from oneside of the air inlet 14 that is close to the inner wall of the lowercup body 102; the V shaped groove or semicircular groove forms with theouter sidewall of the upper cup body 101 the first air passage 15 whichallows an airflow to pass through; a gap or a hole is defined betweenthe bottom of the upper cup body 101 and the bottom of the lower cupbody 102 and is in communication with the first air passage 15, to allowan airflow to enter the bottom of the supporting base 10; a gap isdefined between the bottom of the supporting base 10 and the bottom ofthe lower cup body 102, for an airflow to flow through; the supportingbase 10 defines thereon a second first air passage 16 which runs throughthe supporting base 10 and communicates the bottom of the supportingbase 10 with the inside of the smoke tube 2. When a user uses theelectronic cigarette, after he/she inhales at the inhalation hole 5, anairflow enters the first air passage 15 to reach the bottom of thesupporting base 10 from the air inlet 14, then reaches the inside of thesmoke tube 2 through the second first air passage 16 and finally issucked out from the inhalation hole 5.

In one embodiment, the above the microporous ceramic heating core 4includes a microporous ceramic support 401 and a heating wire 402arranged inside the microporous ceramic support 401; the microporousceramic support 401 may have a circular section; a seal ring may bearranged between outer sides of two ends of the microporous ceramicsupport 401 and the inner side of the smoke tube 2 to achieve a sealedconnection; the heating wire 402 may be arranged wound on the innersidewall of the microporous ceramic support 401; the heating wire 402may be distributed in a shape of thread; the heating wire 402 has twoends in electrical connection with the power unit; when the atomizer isin connection with the power unit, the heating wire 402 is in connectionwith the power unit and is electrified, and the heating wire 402 isheated; since the ceramic has good heat conduction, the heat of theheating wire 402 is quickly transferred to the outer side of themicroporous ceramic support 401; the tobacco liquid is vaporized into anaerosol after contacting the microporous ceramic support 401, and theaerosol enters the inside of the microporous ceramic support 401 throughthe inside tiny pores; since the inside of the microporous ceramicsupport 401 is in communication with the inside of the smoke tube 2, theaerosol is expelled from the inhalation hole 5 under the drive ofairflow.

In one embodiment, the supporting base 10 may be provided with two firstelectrodes 17; the heating wire 402 has two ends in connection with thetwo first electrodes 17 respectively; the two first electrodes 17 may beof cylinder shape; the supporting base 10 defines thereon twocylindrical mounting holes to mount the two first electrodes 17; andwhen the atomizer is in connection with the power unit, the firstelectrodes 17 are in electrical connection with the power unit.

Further, the above power unit includes a housing 18 and a battery 19;the housing 18 has a top end provided with two second electrodes 20; thesecond electrode 20 has one end extending into the housing 18 to be inconnection with the battery 19 and has the other end extending out ofthe housing 18; when the atomizer is in connection with the power unit,the end of the second electrode 20 extending out of the housing 18passes through the cup body 1 of the atomizer to contact and connectwith the first electrode 17 inside the cup body 1.

In order to achieve a detachable connection between the atomizer and thepower unit, a magnetic component may be arranged between the bottom ofthe cup body 1 and the top of the housing 18, for example, a block ofiron may be arranged on the bottom of the cup body 1, and a magnet maybe arranged on the top of the housing 18; and the atomizer and the powerunit will draw each other automatically when they are close to eachother.

In order to reduce the harm to the human body, a liquid sorbent cotton21 may be arranged above the microporous ceramic heating core 4 insidethe smoke tube 2, thereby reducing the intake of tobacco liquid by thehuman body and meanwhile preventing the cooled tobacco liquid beinginhaled by a user.

The above are the specific embodiments of the disclosure merely.However, the protection scope of the disclosure is not limited to this.Any variations or substitutions easily thought by one skill familiarwith the technical field are intended to be covered in the scope ofprotection of the disclosure. Therefore, the scope of protection of thedisclosure should be based on the protection scope of claims appendedherein.

What is claimed is:
 1. An anti-leakage electronic cigarette, comprisingan atomizer and a power unit configured for supplying power to theatomizer, the atomizer being in detachable connection with the powerunit, wherein the atomizer comprises a cup body (1), a smoke tube (2), asealing element (3) and a microporous ceramic heating core (4); the cupbody (1) defines an inhalation hole (5) on a top thereof; the smoke tube(2) has one end in connection with the top of the cup body (1) and incommunication with the inhalation hole (5), and has the other end inconnection with a bottom of the cup body (1); the sealing element (3) isarranged between an outer sidewall of the smoke tube (2) and an innersidewall of the cup body (1) and is positioned at a bottom of the smoketube (2); an upper end face of the sealing element (3), the outersidewall of the smoke tube (2) and the inner sidewall of the cup body(1) enclose a sealed liquid cup (6) configured for storing a tobaccoliquid; the microporous ceramic heating core (4) is arranged inside thesmoke tube (2) and is positioned above the sealing element (3); themicroporous ceramic heating core (4) has outer sides of two ends insealed connection with an inner sidewall of the smoke tube (2), and agap is defined between the middle part of the microporous ceramicheating core (4) and the smoke tube (2); a position on the smoke tube(2) where the microporous ceramic heating core (4) is arranged defines aliquid hole (7) which allows the tobacco liquid to enter the smoke tube(2); and the cup body (1) further defines thereon an air passage whichconnects the outside of the cup body (1) with the inside of the smoketube (2).
 2. The anti-leakage electronic cigarette according to claim 1,wherein a position on the cup body (1) corresponding to the liquid cup(6) further defines a window (9) which is configured for observing aliquid level inside the liquid cup (6).
 3. The anti-leakage electroniccigarette according to claim 1, wherein the cup body (6) comprises anupper cup body (101) and a lower cup body (102), the inhalation hole (5)is defined on a top end of the upper cup body (101), the upper cup body(101) has an open bottom end and the bottom end is provided with asupporting base (10), the smoke tube (2) has a bottom end in detachableconnection with the supporting base (10), the lower cup body (102) hasan open top end, and the lower cup body (102) is detachably sleevedoutside the bottom of the upper cup body (101).
 4. The anti-leakageelectronic cigarette according to claim 3, wherein the sealing element(3) defines thereon a liquid refill channel (11) which connects theoutside of the sealing element (3) with the inside of the cup body (6),the upper cup body (101) has a sidewall defining a liquid refill hole(12) which is in communication with the liquid refill channel (11), theliquid refill hole (12) is defined where the upper cup body (101) is inconnection with the lower cup body (102), and a plug (13), which isconfigured for sealing the liquid refill channel (11), is arranged atthe liquid refill hole (12).
 5. The anti-leakage electronic cigaretteaccording to claim 3, wherein the air passage comprises an air inlet(14) defined on a sidewall of the lower cup body (102), a first airpassage (15) defined between the upper cup body (101) and the lower cupbody (102) and configured for connecting the air inlet (14) with abottom of the supporting base (10), and a second air passage (16)defined on the supporting base (10) and configured for connecting thebottom of the supporting base (10) with the inside of the smoke tube(2).
 6. The anti-leakage electronic cigarette according to claim 3,wherein the microporous ceramic heating core (4) comprises a microporousceramic support (401) and a heating wire (402) arranged inside themicroporous ceramic support (401), the microporous ceramic support (401)has an outer side in connection with the smoke tube (2), the microporousceramic support (401) has a hollow interior, the heating wire (402) isarranged wound on the interior of the microporous ceramic support (401),and the heating wire (402) has two ends in electrical connection withthe power unit.
 7. The anti-leakage electronic cigarette according toclaim 6, wherein the supporting base (10) is provided with two firstelectrodes (17), the heating wire (402) has two ends in connection withthe two first electrodes (17) respectively, and the first electrode (17)is in electrical connection with the power unit.
 8. The anti-leakageelectronic cigarette according to claim 1, wherein the power unitcomprises a housing (18) and a battery (19) arranged inside the housing(18), the housing (18) has a top end provided with two second electrodes(20), the two second electrodes (20) are in electrical connection withtwo electrodes of the battery (19) respectively, and, when the atomizeris in connection with the power unit, the second electrode (20) passesthrough the cup body (1) to contact the first electrode (17).
 9. Theanti-leakage electronic cigarette according to claim 8, wherein a pairof magnetic components is arranged on the bottom of the cup body (1) andthe top of the housing (18).
 10. The anti-leakage electronic cigaretteaccording to claim 1, wherein a liquid sorbent cotton (21) is arrangedabove the microporous ceramic heating core (4) inside the smoke tube(2).